It is against the law in the United Kingdom to genetically engineer humans in a way that can be passed onto future generations. This is called a germ-line genetic modification. The three-parent embryo technique, also called mitochondrial replacement (MR), is very much a germ-line modification.
When the majority of the people in the UK told the government they did not want the law changed, the government simply changed the definition of “genetic modification” so the technique could move forward. I think the UK Department of Health needs to change its name to the Ministry of Truth.
Read my piece about The Orwellian Deception: Three-Parent Babies Okayed in the UK at the National Catholic Register.
Rebecca Taylor blogs at Mary Meets Dolly